视频概述

Stick a heavy-duty suction cup near each of the two top corners of the glass panel.

To attach the suction cups, first position the suction cup with the movable handle parallel to the face of the glass panel (as highlighted in the second picture).

While lightly holding the suction cup against the glass, raise the movable handle until it is parallel with the other handle (as highlighted by the third picture).

If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a damp soft, lint-free cloth. (Dampen with distilled water, and if needed, an equal ratio of distilled water and white vinegar for best results.)

Do not use the suction cups to carry the display glass because if one of them fails to stick, you could drop the screen and break it.

The original iMac box makes a good place to store the glass panel. Otherwise, a padded horizontal surface, like a towel on a desk will do nicely.

Yes, you don't need the specific suction cups to remove the display cover - it's held on by magnets, and if you start at the center by the iSight you can work out to the edges and remove it. I had an iPhone screen suction cup around and it helped with balancing the screen when you pull it out fully, but by no ways is it required.

Great guide and pretty straight forward the only thing that took me ages and I didn't manage to undo were the power btn cable (step 28) and the thermal sensor (step 25) Seemed like they were glued on! Very difficult to remove and obviously conscious so I didn't break anything!

Then, i did not take out the whole display and left it in the hinges on the bottom side and held it up with two small cardboard boxes. Easy enough to disconnect the hdd then.

I replaced with an ssd, put that into a ssd enclosure. Had to drill an extra hole in it to fasten the pins that hold it in place.

Used Carbon Copy Cloner to make an image from the old hdd, with the sad connected via usb. Checked it of it booted via System Preferences > Startup Disk. It worked so the took the imac apart and replaced the disk. Booted, everything was working as always, only faster!

My display data cable forks, with a smaller section going up near the camera board. Where it forks, it is attached to the aluminum plate that attaches around the cpu board. I haven't seen any images that look similar, and I'm stumped at how to remove this second section of the cable. 2010 i7 build to order

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Gently lift the glass panel perpendicular to the face of the LCD enough to clear the steel mounting pins attached along the underside of the top edge of the glass panel.

Pull the glass panel away from the lower edge of the iMac and carefully set it aside.

Don't use the suction cups to carry the glass panel—if either one loses its grip, the panel could fall and break.

After setting the glass panel down safely, be sure to release the suction cups, as the suction force over time, can crack the glass.

During reinstallation, be sure to meticulously clean the inside of the glass panel and the face of the LCD as any dust or fingerprints trapped inside will be annoyingly visible when the machine is turned on.

Reassembly: After powering on and running for a few minutes, found a large whitish patch on the screen. Persists after powerdown.

Turned out to be condensation, though it didn't look like it - more like fine white powder rubbed in. Humidity is very high this time of the year. Fix: start airconditioner in a room, leave it running a while, take iMac in, prise open the glass again. Condensation vanishes instantly. Keep it out for a ~15 minutes running infinite loops to get iMac nicely heated up and fans running. Snap glass back.

I used a Swiffer dry cloth to get all the dust off the screen while just blowing with my mouth at a steep angle. I know I didn't get every speck, but the screen looks perfect once assembled and lit again. Removing the glass from the screen is pretty easy if you need to re-clean it.

I strongly recomment to detach the suction cups while working at the rest of the steps. In my case after half an our i heart a crack noise behind me on the table... The vacuum of one of the suction cups braked the glass! maybe there should be a warning in the Repair guide

I didn't crack the screen, but it popped out of the shims and then popped back in, as if the glass edge is magnetic or has steel in it to connect to magnets. Be careful with this step — it is pretty nerve-wracking, but doable!

You need a big clean surface free, or at least 2 or more free surfaces because the iMac, the glass and the LCD display are quite bulky. You'll also probably need space for a tablet or a laptop to read this guide while you are working. And don't forget room to work on the optical unit and for the tools you are going to use. I covered a large table with a double layer of bubble wrap. In my opinion it's better to put the glass face down to limit powder sticking on the internal surface.

I am doing this repair now. After successfully lifting off the glass panel (yay!), dust blew out of the lower open edge. So I sprayed a can of air around edges. But a poof of the “air” condensated on the LCD. Does anyone know if I can clean the LCD same as how the glass is cleaned (damp cloth with equal parts white distilled vinegar/distilled water) and if not then how?

To clean the LCD panel, I would suggest using a clean microfiber cloth and rubbing alcohol. Distilled water can be used, but avoid regular water, which contains minerals. Make sure the microfiber cloth is absolutely clean and has no hard particles sticking on the surface, which will scratch your LCD when you wipe it.

Wet the surface with some alcohol and gently wipe with the microfiber cloth. Wipe in one direction.

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Due to tight tolerances, you will have to use a thin hooked tool to lift the display out of the outer case. As seen in the third picture, we made one out of a bent paperclip.

Use a thin hooked tool to lift one side of the top edge of the display by its steel outer frame.

After lifting the top edge of the display on one side, hold it out of the outer case while you use a hooked tool to lift the other side. A pencil or pen can be placed under the top edge of the display, parallel to the top edge and extending past the edge of the computer, to keep the first side propped up while lifting the second.

Do not lift the top edge of the display out of the outer case too far, as several short ribbon cables still connect the two components.

Be very careful not to hook the Bluetooth antenna cable while you're lifting the display out. It's hiding under the top left corner of the iMac. I managed to snag mine with the paperclip and ended up pulling the antenna cable clean out of the tiny gold connector. Some very precise reconstruction work was required to get the cable seated in the connector again and back up to full signal strength.

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Use a pair of tweezers to pull the vertical sync ribbon cable out of its socket on the LED driver board near the top left corner of your iMac.

On some iMacs this may not be a ribbon cable but four separate, very fine and very fragile wires. Be very careful, if the tweezers slip off the plug, you will very likely pull a wire out of the assembly.

I had a friend with me so all I did was disconnect the vertical sync ribbon cable, and I had my friend hold up the LCD for a couple of minutes as I swapped out my HDD with an SSD, thus avoiding steps 6-9 and going straight to step 10.

After removing the display, I noticed a high pitched whine coming from the machine, different loudness for different levels of display brightness. Reading up on it, it seems that the problem is with the vertical sync cable (and this is a well-known issue with Apple with new machines, too). So be careful when reinserting this cable!

I noticed that the vertical sync cable seems to have been updated since the guide was produced. It now has a more normal plug and socket and 'regular' wires instead of the flat ribbon cable shown here. I used narrow nosed pliers instead of tweezers to unclip it as I was afraid that just pulling on the wires could have broken them.

WARNING: Take extreme care when removing these wires as mine were not a ribbon cable but individual tiny wires. I removed them cautiously with tweezers OK but when re-inserting, one of the wires came off. Obviously someone had been in here before.

I changed the HD yesterday and when I reinstalled the Display I had the same problem then Peter Sinclair. I started to panic first. But then I reinstalled the Pannel without re-insterting the cable at all and nevertheless my iMac works perfectly since 14 hours now. I'm really confused!

My vertical sync ribbon cable had two of the four contacts bent back, it may even have been like this originally. I straightened them out as best I could under a magnifying glass, and after reinserting, everything is working OK. Seems this cable is not particularly critical. Also, I used needle nose pliers for this and the other connectors, I can't get enough grip with tweezers.

Tweezers didn't work for me due to the angle and lack of grip (they kept slipping and I was concerned about squeezing any harder). I just used my fingers to grab the connector as close to the connection as possible for both removal and insertion and it worked just fine. I have big hands and meaty fingers, so this method should work fine for anyone.

I have a late 2009 27" Mac and did something similar to Gabe, but being alone, after unplugging the vertical sync cable, I used two wooden chopsticks to hold the screen at about 45° and without disconnecting any more cables I could quite easily access the Superdrive to remove and replace with a 240GB SSD with help from a caddy from TheNatural2020, which required a tiny modification.

All in all it took me about 45 minutes and was much easier than expected. It is working at a negotiated SATA speed of 3 Gbps Some report a speed of only 1.5 Gbps, but from what I had read before purchasing the Crucial M500, going for a 6 Gbps SSD is worse on a late 2009 Mac as it has to default to the basic SATA 1 speed of 1.5 Gbps, while the slower 3 Gbps SATA II drive works at 3 Gbps. The time from the Apple logo till the sign-in screen on startup has gone from 33.5 seconds to 8.5 secs, and my internal hard drive is a 7200rpm

Thanks for this suggestion! I didn't have chopsticks, but was able to use some pens instead. The pens are shorter, but still provided sufficient room for my tools to get to the screws holding the HD. I noticed there are two large, thumb size, indentations in the frame under the LCD that the pens fit into nicely. Since I did the repair by myself, this really sped up the process and I was able to complete the HD swap and memory addition in about 25 minutes. (I had planned 2 hours. Happy, happy, happy!)

I had to open and close the iMac several times as each time some of the cables was not properly connected: The vertical sync, the display data cable connector, even the Bluetooth antenna was off at some point and I had to re-open every time! Finally I left the vertical sync cable disconnected as with each operation it was in very bad condition and impossible to plug in. I'm amazed at how bad designed is this cable and how easy is to break it! It's nice to know that they improved it, poor technicians.

I'd like to replace it in the future but I really don't know how or if it is available in its more up-to-date version… I didn't feel like dissasembling everything again to see how is it connected.

The portion of this little cable that plugs into the receptor is stiffer than the rest of the cable, but it is very slippery. For me, it was also very tight. Tweezers and fingers just slipped right off of it. Fortunately, I didn't tear the cable. I ended up using needle-nose pliers wrapped with cellophane to get traction. It was also very difficult to reinsert. By raising the display to the maximum level with all the other cables connected, I was able to push it in with my fingers.

Also: if you get any smudges on the display, a lens pen works great to remove them. I used a swiffer to pick up dust.

I opened the case as far as I could without stretching this cable and used my fingers to get it. The end of the ribbon where it connects is stiff, so you can grab it there. There's not connector; the stiff part just slides in and out. Getting it back in is a pain, but if you get the perfect angle it slides back in without much force.

Pull the cable AWAY from the connector. Some cables have a plastic connector cap attached to the end. This one does not. The cable just slips out as if pulling a stick of gum out of a package. I used my index finger and thumb, no tweezers needed.

I also plugged it out with my fingers, got more feeling in them. Put it in the same way. There is no barb or something on the cable, so this should be quite safe when not using too much force. And I also used chopsticks to keep the display up, just like an engine hood.

This ribbon had me flumoxed for a while. I had expected to have to remove the terminal from the circuit board. All you need to do it gently pull on the ribbon directly and it will come out of the terminal.

I followed the above tips and used chop sticks as struts to support the internal screen at an angle, whilst I worked on the hard drive. Allowed me to skip the remaining cable removal steps and go straight to step 10. And I didn’t need an extra set of hands to hold the screen whilst I worked.

I found step 6 the most difficult of the whole procedure. The way I unclipped the connector was from the front, with my thumbnail. There's a little ridge over which the cable clicks tight. If you use your thumbnail to lift the connector over that ridge, you can then easily remove the cable. (Maybe iFixit should that advise to the guide, since especially step 6 is a bit too concise imho.)

Agreed with previous comment :You should be very careful after step 5 - it may be necessary to do the step 7 before the step 6 because the connector on the motherboard for the LCD data is very very fragile. I broke it and found that a lot of people broke it as well .

I just spent 100€ at the Mac shop to learn this: when reattaching the display data cable be sure you get the ends right. Even if the cable fits perfectly the other way round, the computer won't even start.

NOTE! The internal video connector on the logic board is quite fragile - proceed with extra care when disconnecting. There are many postings of Mac users who have broken the display connector and are then left with quite a challenging proposition to replace it. Here is the link to one such thread: http://forums.macrumors.com/showthread.p....

Ditto. It is very fragile. Mine pulled off the motherboard while doing the upgrade (all else went well). Problem occurred because I tried to do the drive swap without removing the display. I had someone hold it up for me. Display is heavy and you can't feel the tug of the cable. Disaster.

The repair is beyond most computer repair folks. Found these guys http://www.dttservice.com/ and they are great. For $195 they fixed it in 24hours.

I ran into a big problem with step 7: my display data cable did not have any sort of plug to connect to the logic board. Instead, the cable seemed to be soldered onto the board or simply run under this small copper-colored band. There was no plastic plug to detach/attach.

I was afraid to pull on the cable and break something, so I simply had a friend hold up the LCD and I replaced the logic board without removing the display. I'm not sure what I would have done if I needed to replace the drive.

Has anyone else run into this issue where the display data cable doesn't have a plug? And are there alternative ways to detach it safely?

@fronesis - on my iMac it wasn't possible to pull out the connector at first. There was a small rectangular metal clip which locked the connector in place - this had to be pulled up first, and then the connector came out extremely easily.

you will break your computer if you follow this step during the reassemble!

it’s not possible to reconnect the display with the board because the cable is way to short to maneuver the connector in place and you have almost no sight - you’ll not see what you’re doing! the better approach is disconnect the cable on the display as well (since the connector here is more robust) and insert the connector on the board as a first step without having the display in front of your face..

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Lift the display for enough clearance to disconnect the LCD thermal sensor cable connector from its socket on the logic board.

If your fan is spinning full speed after completion, check this connection or the hard drive's thermal sensor cable. The thermal sensor connector socket is very fragile, so be very careful when you connect back the sensor cable.

Be very very careful when you pull out this plug as it is extremely fragile and also reattaching the LCD thermal sensor plug and very very gently ensure that the pins are actually going into the connector before you push the plug in. i damaged the top part of the plastic housing which then made it difficult to insert the plug into the connector. I can't believe how easy it was to damage this connector!! If you don't attach the LCD thermal sensor plug correctly the Mac fans will go crazy at full speed. It took a good 15 minutes to get the pins to finally go into the plug and they can bend easily.

This was too tight to get with my hands. I used needle nose pliers to grab the plastic connector and it popped right out. I need pliers to get it to snap back in too. The wire itself if very thin so be sure to only grab the connector.

The connection of this cable is moot (and to the main drive too) if you purchase HDD Fan Control Monitor software that uses the SMART tech inside the drives to set the fan speeds. It was rather expensive but worth the $35

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The next few steps bring your hands close to the exposed face of the power supply. To avoid a high voltage shock from the many large capacitors attached to the board, do not touch the face of the power supply.

Disconnect the DC power cable by using your index finger to depress the locking mechanism on the back of the connector while you pull the connector away from its socket on the power supply.

Once the locking mechanism has cleared the socket, pull the DC power connector away from the power supply.

I found it tricky to get a grip on this connector with the PSU still in place so I left this step until I had removed the torx screws holding the PSU in place. By lifting the PSU and rotating it toward the top of the iMac I was able to disconnect the DC cable easily.

That's ok now ! I've had to repair the iMac twice because the Power Supply Unit was also out. At the beginning of the problem, the power button didn't work, but sometimes it worked. For instance if the iMac was stopped for several hours, or days ! Then, it was more and more frequent. I have supposed that some large capacitors on the PSU were too old and wrong. Could it be the reason ?

Many thanks to Ifix-It Europe : they have sent a new PSU very quickly. This 2nd repair took me about 45'.